Heating and ventilating stove



(No Model.) v A J. T.. JENSEN.

HEATING ANDVENTILATING STOVE.

Patented Apr. 12, 1.887'.

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UNITED 'STATES PATENT Erica,

JENS THORVALD JENSEN, OF BENSON, MINNESOTA.

HEATING AND VENTILATING sTov-E.

SPECIFICATION forming part of Letters Patent No. 360,885, dated April 12, 1887.

Application tiled March 22,1886. ASerial No.196,076. (No model.)

To all whom/.it may concern:

Be it known that I, JENs THORVILD J EN- SEN, a subject of the King of Sweden and Norway, now residing in Benson, in the county of Swift and State of-Minnesota, have invented an Improved Heating and Ventilating Stove; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying' drawings, making part of this specification.

Figure l represents a vertical section, cutting from front to back, of a stove constructed with my improvements, also showing portions of the adjacent' wall or chimney and of the door beneath; Fig. 2, a horizontal section of the same in a plane indicated by the line 1 l, Fig. l; Fig. 3, a horizontal section-thereof in a plane indicated by the line 2 2, Fig. l.

Like letters designate 'corresponding parts Y in all of the figures.

My improved stove is constructed to act upon the principle of bringing cold fresh air from the outside into the heating apparatus, heating the air in its passage through the apparatus, then discharging the heated air into the room or rooms, and at the same time expelling an equal volume of more or less foul air fromthe room or rooms, to make room for the fresh air, and thus Ventilating as well as heating the said room or rooms. In the accompanying drawings, A represents the stove proper or fire-chamber, shown as a simple rectangular fire-box for burning wood, or it may be coal or any other fuel; B, a portion of the door on which the stove or rechamber rests; O, a portion of the adjacent wall or chimney back of the stove, and D an ash-pan beneath'the fire-chamber.v

First, as a part of my invention, I employ for conducting the products of combustion from the nre-chamber to the chimney a smoke pipe or ilue, E, of zigzag form, having several (as many as convenient to have in the space allowed for it) rectangular or other form of bends equivalent in effect before it discharges the products of combustion into the chimney through the exit-pipe a.

Second, as another part of my invention, I inclose or'surround the entire stove and smoke pipe or flue with a case vor jacket, G, allow-ing inside of the same sufficient space b b for a free circulation of air to be heated by the said stove and smoke-pipe'.

Third, in combination with the stove, stovepipe, and inclosing case or jacket, I employ a pipe or passage, H, through which-cold fresh air is brought from the outside anddischarged into the air space inside of the case or jacket and around the stove and smokepipe. fresh-air pipe may lead through the side wall or the adjacent chimney of the building, as shown in full lines in Fig. l, or up through the fioor beneath, as shown by dotted lines in the same figure.

Fourth, as auxiliary to the heating of the fresh air by the outside surfaces of the stove and smoke-pipe, I locate inside of the smokepipe an air-pipe, I, and, if desired, also through v the stove, the air-pipe bending with the smoke- 'products of combustion passing through the smoke-pipe. In using this auxiliary'heatingpipe, the smoke-pipe E is best made of castiron, rectangular in cross-section, as shown in Fig. 2, and the air-pipe I of sheet-metal and of cylindrical form. All joints and seams between the smokepassages and the air-passages should be entirely tight, so that the air may not become contaminated by the leakage of any of the products of combust-ion into the same.

A suitable exitpassage, c, leads from the upper part of the air-chamber through the case or jacket into the room, and, if another room is to be heated by the same stove, a pipe or passage, d, is to lead from the upper part of the air-chamber to the said additional room or rooms. These exit-passages are to be controlled by suitable valves or registers, ef, and the flow of air into the hot-air chamber and auxiliary pipe is or maybe controlled by a valve or register, g.

The inclosing case or jacket G may be made of sheet metal, cast-iron, or, still better, of brick This the stove. All the parts are to be of suitable capacity or size proportionate to the room to smoke-pipe, inclosing case or jacket G, ne1osbe heated and to one another. ing a heating-chamber, b, around the smoke- I claim as my nventionpipe, and air-inlet pipe H, substantially as l. The combination of the stove A, zigzag and for the purpose herein specified. 5 smoke-pipe E, zigzag air-pipe I within the Intestmonywhereofhave hereunto set my I5 smoke-pipe, and cold-air-inlet pipe H, snbhand in presence of two subscribingwitnesses.

stantially as and for the purpose herein spec- J EN S THORVALD JENSEN. fied. Witnesses:

2. The combination of the stove A, zigzag LOUIS FEESER, Jr.,

1o Smokepipe E, zigzag air-pipe I within the l M. H. ALBIN. 

